16596745397 has 8 divisors (see below), whose sum is σ = 17690967000. Its totient is φ = 15515628544.

The previous prime is 16596745393. The next prime is 16596745427. The reversal of 16596745397 is 79354769561.

It can be written as a sum of positive squares in 4 ways, for example, as 3672238801 + 12924506596 = 60599^2 + 113686^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16596745397 - 2² = 16596745393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16596745391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3273572 + ... + 3278637.

It is an arithmetic number, because the mean of its divisors is an integer number (2211370875).

Almost surely, 2^16596745397 is an apocalyptic number.

16596745397 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

16596745397 is a deficient number, since it is larger than the sum of its proper divisors (1094221603).

16596745397 is a wasteful number, since it uses less digits than its factorization.

16596745397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552375.

The product of its digits is 42865200, while the sum is 62.

The spelling of 16596745397 in words is "sixteen billion, five hundred ninety-six million, seven hundred forty-five thousand, three hundred ninety-seven".